import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/welcome.vue'
import User from '../components/user/User.vue'
import Rights from '../components/power/rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/order.vue'
import Report from '../components/report/report.vue'


Vue.use(VueRouter)

const routes = [{
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [{
      path: '/welcome',
      component: Welcome
    }, {
      path: '/users',
      component: User
    }, {
      path: '/rights',
      component: Rights
    }, {
      path: '/roles',
      component: Roles
    }, {
      path: '/categories',
      component: Cate
    }, {
      path: '/params',
      component: Params
    }, {
      path: '/goods',
      component: List
    }, {
      path: '/goods/add',
      component: Add
    }, {
      path: '/orders',
      component: Order
    }, {
      path: '/reports',
      component: Report
    }]
  }
]

const router = new VueRouter({
  routes
})
router.beforeEach((to, from, next) => {
  //to要去哪里
  //from从哪来
  //next是个函数，表示放行，调用next()或next("/login")
  if (to.path === "/login") return next();
  //如果不是登陆，获取token
  let token = window.sessionStorage.getItem("token");
  if (!token) return next("/login");
  next();
})

export default router